is a circular park named after Segundo Gaston, a former pre-war Municipal Mayor of Cagayan de Oro, and is a favorite place to unwind for many Kagay-anons, especially during Sundays. It is located near the Saint Augustine Metropolitan Cathedral and Archbishop's Palace. This was the site of the first Spanish settlement established in 1622 and was the main plaza during the era, even becoming an execution ground for Spanish criminals. During the Philippine-American War, Gaston Park was a training ground for local soldiers, and on April 7, 1900, became the site of the Battle of Cagayan de Misamis. After World War II, cherry blossoms were planted in the park as a gift from the Japanese Government. In 2000, a National Historial Institute marker, now commonly referred to as the Siete de Abril marker commemorating the battle in 1900, was placed at the park, and this can now be found at its northwest section facing City Hall. There is also another marker donated by the Cagayanons of America, Southern California Chapter, located in front of the Archbishop's Palace. At the southwest corner of Gaston Park across from St. Augustine Metropolitan Cathedral is the Sendong Memorial, dedicated to the victims of Tropical Storm Sendong. The park recently underwent a renovation, which saw the replacing of its worn-out grass with concrete and pavers. A musical fountain was installed at the park's center at the same time.